Metaphors are a good choice for trademarks. A metaphor typically requires some thought, imagination or perception to understand the connection between the mark and what’s for sale.
Remember what a floating feather might suggest metaphorically? Yes, a good night’s sleep. So, the symbol works well as a distinctive non-verbal trademark for a pharmaceutical sleep
Let’s call it the Family Feud test of trademark suggestiveness . . . . 
We’ve written a lot here about the all-important Spectrum of Distinctiveness, a key tool for those who name products and services, and for those who hope their selected names can be ownable as trademarks, upon their first use in commerce.
Recently I happened upon an interesting non-traditional, non-verbal, federally-registered trademark that is sure to inspire multiple naming/branding/design posts for me down the road, and I’m anticipating they’ll be so easy to write, I’ll probably do them while I sleep:
So, given that introduction, any guesses as to the brand identified by this floating
